Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-12-02
JHEP 0501 (2005) 004
Physics
High Energy Physics
High Energy Physics - Theory
18 pages, one Latex file
Scientific paper
10.1088/1126-6708/2005/01/004
Some physically relevant non-linear models with solitons, which have target space $S^2$, are known to have submodels with infinitly many conservation laws defined by the eikonal equation. Here we calculate all the symmetries of these models and their submodels by the prolongation method. We find that for some models, like the Baby Skyrme model, the submodels have additional symmetries, whereas for others, like the Faddeev--Niemi model, they do not.
Adam Christoph
Sanchez-Guillen Joaquin
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